TIMING RESPONSE OF SILICON POSITION-SENSITIVE DETECTORS

A simple RC-delay line model of a silicon position-sensitive detector has been extended to cover the case when one end of the resistive layer has been terminated. The timing predictions of the model have been compared with heavy-ion experimental data and good agreement is found. The insight provided by the model has been used to improve the measured timing resolution obtained using thin (approximately 35-mu-m) passing detectors by typically a factor of five.